Headlight plug



June 19, 1923.

1,459,651 0. L. CARR HEADLIGHT PLUG Filed 00?.24, 1921 E ET l.

Patented June 19, 1923.

UNITED STATES OSCAR LEMONT CARR, OF BATON ROUGE, LOUISIANA.

HEADLIGHT PLUG.

ApplicationfiledOctober 24, 1921. Serial No. 510,032.

To all whom it may concern:

Be it known that I, OSCAR L.'CARB, a citizen of the United States, residing at Baton Rouge, in the parish of East Baton Rouge and State of Louisiana, have invented certain new and useful Improvements in Head-' light Plugs; and I do hereby declare the fol lowing to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it apper tains to make and use the same. 1

The present invention relates to improvements in head light plugs and has for an object to provide a plug of this or other description involving a novel and improved device for holding the wires without the aid of screws such as now used or other parts or fastenings that are apt to become loose with the vibration and jarring of automobiles incident to travel, and which-often results in the interrupting of the light circuit;

Another object of the invention'resides in providing an improved plug for use more particularly in conjunction with automobile head lights in which the parts are few and simple and the device susceptible of inexpensive manufacture and wherein access to the parts may readily at all times be had.

With the foregoing and other objects' in view, the invention will be more fully describedhereinafter, and will be more particularly pointed out in the claim appended hereto. In the drawings, wherein like symbols refer to like or corresponding parts throughout the several views, 7

Fig. 1 is aside view of an improved plug constructed according to the present invention; d0

Fig. 2 is a longitudinal sectional view therethrough Fig. 3 is a transverse sectional view taken on the line 33 in Fig. 2; and,

Fig.4 is a perspective view of a detail.

Referring more particularly to the drawings, wherein onl a single embodiment of the invention is isclose 1 designates the body of the plug which is made after a customary fashion, for instance in the elongated cylindrical form with pins 2 projecting laterally from an intermediate part thereof to engage in the bayonet slots of the head light socket. The insulating body 1 is molded about the contact bars 3 and 4 havstamping.

and are'adapted to come into engagement with similar contacts in the lamp socket.

' At their opposite ends each of the contacbars 3 and 4 are formed or provided with U-shaped, stirrups. or clips 7 open at both ends and having pivoted therein as indicated at 8 blocks 9 which move into the stirrups of clips and are adapted to bind the wires-10 and 11, which come from the battery, therein. The clips 7 are with advan tage made in one piece with the contact bars, being stamped out of a blank therewith and subsequently folded into the parallel relation shown and at substantially right angles to their initial positions at the time of A rivet may be passed through these clips and the block in order to form the connection shown (at 8 in which the blocks may pivot into and out of the clips. The outer edges of the blocks 9 arebeveled as indicated at 12 and cooperate with a wedge or frustoconical surface 13 Within a ferrule 14: which has screw threaded engagement with the insulating body 1 as represented at 15. The insulating body 1 is of course cut away to receive the clips and the blocks and to expose the wedge edges 12 of the blocks to the frusto-conical wall 13 of the ferrule. The ferrule is provided with-a closed end 16 havin a central perforation 17 to receive the wires 10 and 11.

In assembling the device, the ferrule-14 is initially disengaged and separated from the insulating body 1. The leads or wires 10 and 11 from the battery are stripped as to their end portions and these stripped parts inserted in the two clips 7 provided therefor. The blocks 9 are closed upon the wires in the clips and the ferrule 14 put upon the body 1 and turned about the threads 1e until such time as a good binding contact is had by the Wedge block 9 upon the wires within the clip 7.

It will thus be seen that the use of screws, and the like devices aredispensed with and an exceedingly good contact is insured by the length of the clip 7 and block 9 which firmly hold an extensive end portion of the wires in elongated engagement with wide surfaces of the contact bar. The ferrule 14 'may be adjusted from time to time to take up any wear or loosening of the parts, and

the ferrule may be quickly run the body of the plug in case it is desired to secure access to the clips and wedge blocks as in the case of breakage of a wire. 7

The plug is in the usual manner put into the head light sockets with the pins' 2 engaging the bayonet slots therein and the plugs sub'ected to a partial rotation whereby to arrive at a locking engagement in the slots.

It is obvious that various changes and modifications may be made in the details of construction and design of the above specifically described embodiment of this invention Without departing from the spirit thereof such changes and modifications being re stricted only by the scope of the following claim.

What is claimed is:

'A plug of the character described com;

prisin an insulated body having contact bars t erein with terminal contacts thereon,

said bars further-being provided with clips at their inner ends opening in opposite di-,

'rections, wed e blocks pivoted in the clips and having t eir outer facesbev'eled, and,

described.

' OSCAR LEMON T CARR. 

